Grating for facilitating the flow of fluids.



PATENTED JUNE 5, 1906.

J. GROUVELLB & H. ARQUEMBOURG. GRATING FOR FACILITATING THE FLOW .OP FLUIDS.

APPLIOATIOE I'ILBI) AUG. 28, 1903.

2 SHBETS-8HEET 1.

IIIHII KMIH llllIlllllllll 6" 4 WITNESSES 4 INVENTORS.

w PATENTED JUNE 5, 1906. J. GROUVELLE & H. ARQUBMBOURG. GRATING FOR FACILITATING THE FLOW 0F FLUIDS.

APPLICATION FILED 11116.28, 1903.

2 SHEETS-SHEET 2.

INVENTORS.

zwzu. gnu/La 8 E S S M H H I at MAM m Fig. 1

o TE TATES (PATENT oFF oE. JULES GR UVE LE AND HENRI ARQUEMBOURG; on time," FRANCE."

GRATING son FACILITATING .i-HEYFLo'w .OF'FLUIDS. e

This inventlon relates, as the title indicates, to gratings adapted to facilitate the e bars thereof, which have a specific shape in exterior cross-section, and it relates also to means adapted for ex-. temperature between fluids when changin the said ars o the grate are made hollow and form a conduit for a fluid.

The novel features of the invention will be carefully defined in the claims- In the accompanying drawings, which illus-. trate embodiments of the invention, Figures 1 to 3 illustrate the application of the invention toa cooler or condenser for an automobile Fig. 1 is an elevation, partly in section, at lme 1 1 in Fi 3. Fig. 2 is a cross-section at line 2 2 in Fig. 3, and Fig. 3 is a sectional plan, the plane of the section being at line 3 3 Figs. 4,5, and 6 are views similar, respectively, to Flgs. 1, 2, and 3, illustrating another sli htly different embodiment of the invention, ig. 4 being a section at line 4 4 in- Fig. 6. Fig. 5 is a section at line 5 5 in Fig. 6, and Fig. 6 a section at line 6 6 in Fig. 4. Fig. 7 is a sectional view illustrating the application of the invention to a hotsair flue covered by a gratin Figs. 8 and 9 illustrate the application of t e invention to a furnacegrate, ig. 8 being a vertical cross-section at line 8 8 in Fig. 9, and Fig. 9 a plan.

. Referrin primarily, to Figs. 1 to 3, which illustrate t e application of the invention to an automobile, either for reducin the temperature of the cooling-water emp oyed with an internal-combustion motor or condensin the steam if the motor be a steam-engine, designates a soil or serpentine of pipe which has a peculiarcross-section, .(seen in Fig. 2,)

which we denominate a lanceolate sect1onthat is to say, the ipe is flattened and has a cross-section of t e form of a lancehead. At the points a and a, where the ordinary c lindrical piping is connected to the ends 0 the flattened dpipe A, the latter will have the usual cylin cal form. The flattened pipe A may be gilled, as indicated Specification of LettersPatent, p A ueatn filed August 2 ,1903. Serial n. 171,106.

ang

section that has been Patented 1...... 5,1906.

somewhat dia ammaticallyin Fig. 1, When the automob' e is in'motion, the air flows through the s aces of the coil in the direction indicated by t e arrows in Fig.2, and the passages through which the air flows have a trance for a shortdistance until the point of greatest contraction of the passage is reached, the conver g sides of: the passage having an angle 0 about thirt degrees to one another. After passing tl iis point of greatest contraction the passage expands gradually for the remainder of the distance, the sides of the lpassage diverging from each other at an e' of about seven 2 degrees for the remainder of the-distance. .The'angles of the cross-section of the pie are designated in Fig. 2 by the Greek etters a and [9. If these angles are substantially what is herein set forth, the passage of air through the coil will encounter the minimum of resistance to its flow. It may be briefly explained here that the angles given above of convergence at the receiving ends of the air-passages throu h the coil and the divergence at the other or elivery ends thereof corres ond to those of known injecto-ejector e ements, wherein the phenomena of injection and ejection are associated as closely as possible, and we have found that the results in practice with the present invention based on these angles have proved very satisfactory.

rather abrupt angle of contractionat the en- The construction illustrated in Figs. 4 to 6 I is the same in principle as that shown in'Figs. 1 to 3, the only difference being that the coil is made up of straight sections of pipe B, having the lanceolate cross-section required for producing the proper form of air-passages between them. The ipes B are connected at their respective en s to upright collectors C 9 and C. These latter may be of anysuitable form and may, if desired, have interior par.- titions so disposed as to compel the fluid in the pi es to flow through the same in the manner o a coil. I

7 illustrates vention to the heating 0 room through a floor register or grating. this construction steam or hot water flows through the ipe of the coil D, and air flows the a plication of the air introduced to a through in t e direction of the arrows, the

the same lanceolate escribed. This form of the i es of the coil promotes the circulation 0 the air, as does also the form of the pipe of the coil having assages through the grating E above, this atter form being the same m substance as that of the passages through the coil D.

In the furnace-grate illustrated in Figs, 8 and 9 the grate-bars F have the same lanceolate cross-section as the pipes belore described and the air-passages between them has the same form as the passages between the, pipes of the coils described. This constructlon enhances the draft.

Obviously if gills be used on the pipes forming the coils, Figs. 1 and 4,'such gills may be formed in any known or satisfactory manner, and the invention embodied in the present application maybe employed for any use or purpose to which it is adapted.

The invention'is not'restricte cial dimensions, materials proportions, or details of construction so ong as the novel features thereof are embodied in the construction. Having thus described our invention, what we jointly claim is' 1. Means for the purpose specified, having a fluid-passage the sides of which, adjacent to that end Where the fluid enters, are disposed to any spe two subscribing witnesses.

at an angle of about thirty degrees to one an-' other and converging, and the sides thereof adjacent to the end where the fluid emergesgradually expands in the same direction, the

.sides of the contracted inlet portion beingdisposed at about an angle of thirty degrees to one another and those-of the expanded outlet portion at about an angle of seven degrees to one another, and the outlet portion being longer than the inlet portion.

In testimony whereof we have signed our names to this specification in the presence of JULES YGROUVELLE.

HENRI ARQUEMBOURG. Witnesses:

I EDoUARn CARnNoN,

CnARLns Manirs. 

